Passwords are exposed in request log

Subversion passwords are exposed in plain text in the request log when adding a project, for example:

2009_05_22.request.log:0:0:0:0:0:0:0:1%0 - - [22/May/2009:14:45:32 +0000] "GET /continuum/addMavenTwoProject.action?scmUsername=wsmoak&_checkbox_scmUseCache=true&_checkbox_nonRecursiveProject=true&buildDefinitionTemplateId=1&m2PomUrl=http%3A%2F%2Fsvn.apache.org%2Frepos%2Fasf%2Fcontinuum%2Fsandbox%2Fsimple-example%2Fpom.xml&scmPassword=mypassw0rd&selectedProjectGroup=-1 HTTP/1.1" 302 0 "" "Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.0.10) Gecko/2009042315 Firefox/3.0.10"

I assume this is a Jetty log file that we can't do anything about. If so, we need to document how to turn off this logging, or perhaps leave it off by default and document how to turn it on if needed.